On March 23, the 4th game of 32nd Kio-sen between Kio Moriuchi and Challenger Kisei Sato was held in Tokyo, Japan. Moriuchi was a Sente(black) player and won the game in 65 moves. You may replay the game through this page. Now the score is tied by 2-2. The 5th(final)game will be held on March 28.
The diagram above is the resignation diagram where Moriuchi dropped a pawn on 5d. There is no mate for Gote(White, upper side of the diagram). But the position is hopeless for him. The possible variations I analyzed are as followings;
Px5d S*5c R*1b G*6b K-4a Gx5b Rx5b +Rx6a G*5a +Rx5b G*5b Sx5b+ Kx5b G*5c K-6a G*6b(mate, replayable by clicking the arow in the right direction under the diagram)
Bx4e Px4e N*7f S*6f Nx8h+ Kx8h Bx1i+ Px5c+ Sx5c P*5b Kx5b B*7d L*6c Bx6c+ Kx6c +Rx6a S*6b L*5g P*5e Sx5e +Bx5e L*5e B*6e B*5b(mate)
Bx4e Px4e Px5d S*4d Bx1i+ P*5c S-4a G*5b Sx5b Px5b+ Kx5b S*4c K-6b B*5c K-5a S-4b+(mate)
Bx4e Px4e Bx8h+ Kx8h N*7f K-7g N-8e K-8f N-8h+ Px5c+ Sx5c P*5b Kx5b B*3d P*4c B*7d K-4b B-4a+ Kx4a +Rx6a P*5a S*5b K-3b Sx4c+ K-2b Bx2c+ Kx2c G*2d K-2b G*2c K-3a G-3b(mate)
There may be more variations. But In any case, Sente should win the game.
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